21. In organic synthesis benzeneselenol is converted to its conjugate base PhSe ", a potent nucleophile. 22. For NH2-, I must ask myself " what is NH2-the conjugate base of? 23. The acid, HA, can lose a proton to become its conjugate base , A ". 24. Antimonous acid is unknown, but the conjugate base sodium antimonite ( ) forms upon fusing sodium oxide and. 25. Amide can " also " refer to the conjugate base of ammonia ( the Alkali metal amides. 26. Here, HInd stands for the acid form and Ind " for the conjugate base of the indicator. 27. "' Potassium gluconate "'is the potassium salt of the conjugate base of gluconic acid. 28. I appreciate the authors'careful use of conjugate base / conjugate acid, which confuses many students. 29. Peroxynitrate, the conjugate base of peroxynitric acid, is formed rapidly during decomposition of peroxynitrite in neutral conditions. 30. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.